545540325 has 96 divisors (see below), whose sum is σ = 1031933952. Its totient is φ = 251904000.

The previous prime is 545540309. The next prime is 545540341. The reversal of 545540325 is 523045545.

It is an interprime number because it is at equal distance from previous prime (545540309) and next prime (545540341).

It is not a de Polignac number, because 545540325 - 2⁴ = 545540309 is a prime.

It is a super-2 number, since 2×545540325² = 595228492402211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2122597 + ... + 2122853.

It is an arithmetic number, because the mean of its divisors is an integer number (10749312).

Almost surely, 2^545540325 is an apocalyptic number.

545540325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545540325 is a deficient number, since it is larger than the sum of its proper divisors (486393627).

545540325 is a wasteful number, since it uses less digits than its factorization.

545540325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 33.

The square root of 545540325 is about 23356.8046830041. The cubic root of 545540325 is about 817.1007692563.

The spelling of 545540325 in words is "five hundred forty-five million, five hundred forty thousand, three hundred twenty-five".